Lénora Guion-Firmin (born 7 August 1991) is a French sprinter who competes in the sprint with a personal best time of 51.68 seconds at the 400 metres event.

Born 7 August 1991, in La Trinité, Martinique, Guion-Firmin won the silver medal at the 2012 European Athletics Championships in Helsinki at the 4×400 meter relay.

[1][2] She twice earned All-America status in 2012, reaching the NCAA finals in the 400-meter dash in both indoor and outdoor.

She earned the same distinction in 2013, reaching the finals in the 400-meter dash in the NCAA Outdoor Championships.

In July 2013, Guion-Firmin captured three medals in the European Championships, U23.